btrfs: convert iomap ops to ->iomap_next()

Convert btrfs iomap_ops to the new ->iomap_next() callback. The callback is
generated with the DEFINE_IOMAP_ITER_NEXT_END() macro, which wraps the
iomap_iter_next() helper to finish the previous mapping if needed and
produce the next one. No functional changes are intended.

Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://patch.msgid.link/20260729192737.3190206-8-joannelkoong@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Joanne Koong 2026-07-29 12:27:22 -07:00 • committed by Christian Brauner
commit ff2ab3146e
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